Oviedo & Pre-Romanesque Asturias Guide 2026: UNESCO Monuments Planning Key Takeaways Nine UNESCO Pre-Romanesque monuments demonstrate exceptional 9th-century Asturian architectural innovation across Oviedo and surrounding valleys Combined monument pass costs €10 for access to all UNESCO sites, with individual entries at €3-4 each in 2026 Spring 2026 (April-June) and autumn […]